Paint-mixer



v. E N A N N E C M T .d. m M m PAINT MIXER.

Patented July 19 Fi ILA SSS N. PETERS Phom-Liumgmpner. washinglnn. D t:v

UNITED STATES ATENT OFFICE.

JOHN 'T. MCENNANEY, OF ATLANTA, GEORGIA.

PAINT-MIXER.

SPECIFICATION forming part of Letters Patent No. 366,784, dated July 19, 1887.

Application tiled September 23,1886. Serial No. 2l4,3.-`5. 'No model.)

To @ZZ whom t may concern:

Be it known that l, JOHN T. MCENNANEY, a citizen of the United States, residing at Atlanta, in the county of Fulton and State f Georgia, have invented anew and useful Paint- Desiceator; and Ido hereby declare the follow` ing to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

The object of this invention is to produce a machine for the purpose of drying mineral paint by artitieial heat, and at the same time to pulverize it and leave it in a more desirable condition for the market.

The invention consists in a revolving cylinder in which is a perforated steam-pipe, and which is provided with projecting teeth which are set diagonally to the axis of the cylinder, and as the cylinder revolves in a casing the diagonal teeth are so set as to force the material toward and out of one end of the cylinder. This casing is surrounded by another, leaving an annular steam-space between the two casings, which are connected at the top in a way to leave an opening its'entirelength, and snitable means for feeding the'maehine, and other details, as will be hereinafter fully described.

In the accompanying drawings, Figure I is a side view, partly in section, showing most of the details. Fig. II is a cross-section on the line A B. Fig. IlI is a longitudinal section ofthe dovetailed guiding-strip, the tooth-carrying strip, and the adj Listing-strip.

In the several figures, like reference-marks referring to like parts, 1 is a cylinder having longitudinal grooves 2, into which are dovetailed slides The'strips 4 have teeth 5 diagonally set on one side, the other side cousisting of inclined planes 6.

7 are strips provided with inclined planes on one side, similar to but in a direction the reverse to that ofinclined planes 6. The slides 3 have rectangular holes adapted to receive the diagonally-set teeth .on the strips et. For the purpose of adjusting the teeth and taking up any wear, the strips 7 are adjusted endwise by set-screws S and the stripstl. are held down by the set-screws 9. The heads 10 of the eyl inder are provided with square inward projections to insure their heilig located centrally to the cylinder, and the cylinder is provided with lugs 11, to which are bolted the heads 10. The heads are also provided with stufii ngboxes 11 and glands 15. The cylindrical casing 17 is provided with a narrow opening at the top, the sides of which opening, extending its length, unite the inner and outer shell ot' the casing, and provide an opening through which the machine is fed by the worm 19, which is revolved in the cylinder 2l by the worm-gears 2O and 21 on the shaft 22, and forces the material through the tubes 23, which are located in the top of the casing. is a hopper to hold the material, and from which it is fed by the worm. The cylinder 1 is driven by the gear 30, which is preferably made integrally with one ofthe cylindenheads, and in turn is driven by the pinion 31 on the shaft 32.

The pinion-shaft is supported by the brackets 33, and will carry any suitable pulley to receive the belt to drive the machine. The scraper 36 has teeth projecting downwardly through the' opening in the top of the cylindrical casing, and, as the teeth 5 areset spirally on the cylinder 1, the scraper has a longitudinally-reciprocating motion for the purpose of preventing the contact with the teeth 5. To produce this reciprocating motion of the scraper, the projecting arm 34 engages with the cam on the cylinder 1. The steam-pipe 40 passes through the cylinder, and is perfo-` rated in that part which is within the cylinder. Thesteam-pipe after passing through the cylinder has a return-bend and enters the cylindrical casing between the outer and inner shells.

The cock 41 is provided for the purpose of drawing off the water resulting from the condensation of steam in the space between the inner and outer shells of the casing. 42 is an opening for the discharge of the material.

In the preparation of mineral paint it is commonly freed from foreign matter by the` rIhe cylinder running in the direction indicated by the arrow, Fig. II, will carry it around IOO the cylinder and the teeth setting obliquely toward the other end. The cylinder an d dou ble casing being heated by steamthe first by thel steam that escapes th rough the perforations in the pipe and the second by thesteam that is carried through the returnbend-will gradually heat the material, which, asit passes the opening in the top, will throw off its moisture, and,being constantly lagitated, will be prevented from forming into lumps, thereby obviating the necessity forasubsequent gri nd-V ing. Theinner side of the casing is curved outwardly until the continuation forms the side of the opening at the top,underwhich the material enters as it isfed to the machine, for the purpose of providing an easy 4entrance Vthat willinot have any tendency t0 stop the material and crowd itout at the'to'p.y

The teeth on the cylinder l being set obliquely and spirally are so arrangedl with reference to their distance from eachother that they will scrape the whole inner surface of the casing, and the reciprocating scraper prevents the adherence near the discharging end of the material to 'the cylinder. v'

It is found that a steam-desiccatorarrangcd as above described will dry mineral paint without discoloration and leave the material in a pulverous condition. f

I am aware that it is not newV to heat desiccating-cylinders by steam, or to supply them with apparatus to keep their contents in motion and gradually force said contents toward one end of the cylinder as 'it becomes drier, and iinallyeject it from the cylinder through a suitable opening formed fory that purpose. I therefore limitimy claims tothe specific com bination of devices y'by these purposes. r Having described my invention, what I claim as new, and desire to secure by Letters y Patentl ofthe United States, is.- A

1. In a paint-desiccator, the combinationt' which t acem'piisir` acylindrical'casing having an opening through the top for the escape of moisture, a steamheated cylinder providedwith oblique, teeth arranged to scrape the innersurface of the casingand a reciprocating scraper to scrape the cylinder, :arranged substantially as described. l

2. In a paint-desiecator, the' combination of the' cylinder l, having teeth set obliquely and spirally on the cylinder, and reciprocating scraper, with a casing having, a'double shell and an opening at the top for the escape of moisture, and a perforated steam-pipe passing through the cylinder andentering the annular openingbetween the shellsof the casing,

substantially as described.

3. In a paint-desiccator, as a means of adjusting the teeth in a cylnder,`the combina-y tion of the strip 3, having holes for the teeth to pass and carry the screws 9, the strip 4, oneside consisting of one or more inclined planes' carrying the teeth 5 and thejstrip 7, one side of which also consists otone for more inclined planes, 'and the screws 8, substantiallyas described. l

In testimony whereof I aixmy signature 1n presence of Vtwo witnesses.

JOHN T. MCENNANEY.

Vitnesses: f'

A. P. Woon, CrrAs. W. WiN'rER. 

